Suitable situation outside Italy secured by primate (8)
I believe the answer is:
apposite
'suitable' is the definition.
(apposite means suitable or appropriate)
'situation outside italy secured by primate' is the wordplay.
'situation' becomes 'post' (both can mean a job or position).
'outside' indicates putting letters inside.
'italy' becomes 'i'.
'secured by' indicates putting letters inside (inserted letters are held or secured).
'primate' becomes 'ape' (ape is a kind of primate).
'post' going around 'i' is 'posit'.
'posit' placed inside 'ape' is 'APPOSITE'.
(Other definitions for apposite that I've seen before include "Appropriate, apt" , "fitting" , "Germane" , "Of a remark, suitable for the occasion" , "Befitting" .)